Results
The result is either positive or negative.
A positive result means that the antigen or the genetic material of the virus was found in your sample. You have COVID-19 now.
A negative result means that the antigen or the genetic material was not found. This may mean that you don't have COVID-19.
But it's possible to get a "false-negative" result. This means that the test shows that you don't have COVID-19 when in fact you do. This may happen because you were tested too soon after you were infected, before the virus started to spread in your nose and throat. Or it could happen because the swab missed the infection.
If you get a negative result for an antigen test, your doctor may recommend that you get another test, such as polymerase chain reaction (PCR), to make sure you don't have the virus. In general, PCR is more accurate than an antigen test.
Some test results come back in a few minutes. Others may take a few days.
If your test is negative, follow your doctor's advice for when you can go back to activities. If your test is positive, talk to your doctor or a public health official about what you need to do.
Waiting for your test results
While you wait for the results of your COVID-19 test, stay in the place where you live, and stay away from others. Do this even if you don't feel sick or have any symptoms. Don't leave unless you need medical care. If you can, try to stay in a separate room. This might help you avoid infecting family members or other people you live with.
Follow your doctor's instructions about what to do when you get your results back.
Be sure to wear a mask and follow social-distancing guidelines after you get your results, even if the test is negative.